Como parsear un XML

//para procesar el xml que se halla en http://bc.vc/gFQw1c
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.xml.sax.SAXException;

/**
 *
 * @author Ruslan López -Javatlacati-
 */
public class EjemploJDom {

    public static void main(String[] args) {
        try {
            JFileChooser chooser = new JFileChooser();
            chooser.setMultiSelectionEnabled(false);
            FileNameExtensionFilter filter = new FileNameExtensionFilter(
                    "Archivos XML felices", "xml");
            chooser.setFileFilter(filter);
            int returnVal = chooser.showOpenDialog(null);
            String ruta = "";
            if (returnVal == JFileChooser.APPROVE_OPTION) {
                ruta = chooser.getSelectedFile().getPath();
                System.out.println("You chose to open this file: "
                        + chooser.getSelectedFile().getName());
            }
            DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder parser = builderFactory.newDocumentBuilder();
            Document d = null;
            try {
                d = parser.parse(ruta);
            } catch (SAXException | IOException ex) {
                Logger.getLogger(EjemploJDom.class.getName()).log(Level.SEVERE, null, ex);
            }

            Element raiz = d.getDocumentElement();
            System.out.println(d.getBaseURI());
            System.out.println(d.hasChildNodes());
            System.out.println(d.getNodeName());
            System.out.println(raiz.getNodeName());
            System.out.println(raiz.hasAttribute("tipo"));
            System.out.println(raiz.getAttribute("tipo"));
            System.out.println(raiz.getChildNodes().getLength());
            System.out.println(raiz.getTagName());
            System.out.println(raiz.getElementsByTagName("compania").item(0).getTextContent());
            System.out.println(raiz.getElementsByTagName("cantidad").item(0).getTextContent());
            System.out.println(raiz.getElementsByTagName("modedelo").item(0).getTextContent());
            Node estilo = raiz.getElementsByTagName("Estilo").item(0);
            //System.out.println(estilo.getChildNodes().getLength());
            System.out.println(estilo.getChildNodes().item(1).getTextContent());
            System.out.println(estilo.getChildNodes().item(3).getTextContent());
            //System.out.println("Tipo:"+primero.getAttribute("tipo"));
        } catch (ParserConfigurationException ex) {
            Logger.getLogger(EjemploJDom.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}